Effects of Y2O3 on the Piezoelectric Properties of PSN-PMN-PZT Composition under Various Alternating Electric Fields
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Published:2007-05
Issue:
Volume:544-545
Page:737-740
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ISSN:1662-9752
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Container-title:Materials Science Forum
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language:
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Short-container-title:MSF
Author:
Ur Soon Chul1,
Choi Y.G.1,
Kwon Joon Chul1,
Ryu Sung Lim1,
Lee Young Geun1,
Lee J.L.1,
Kim L.H.1,
Hong Tae Whan1,
Kwon S.Y.1,
Yoon Man Soon1
Affiliation:
1. Chungju National University
Abstract
0.03Pb(Sb0.5Nb0.5)O3-0.03Pb(Mn1/3Nb2/3)O3-(0.94-x)PbTiO3-xPbZrO3 ceramics doped with Y2O3 were synthesized by conventional bulk ceramic processing technique. Phases analysis, microstructures and piezoelectric properties were investigated as a function of Y2O3 contents (0.03, 0.05, 0.1 0.3, 0.5 and 0.7 wt.%). Microstructures and phases information were characterized using a scanning electron microscope (SEM) and an X-ray diffractometer (XRD). Relative dielectric constant (K33 T) and coupling factor (kp) were obtained from the resonance measurement method. Both K33 T and kp were shown to reach to the maximum at 0.1wt.% Y2O3. In order to evaluate the stability of resonance frequency and effective electromechanical coupling factor (Keff) as a function of Y2O3 contents under strong electric field, the variation of resonance and anti-resonance frequency were also measured using a high voltage frequency response analyzer(FRA5096) under various alternating electric fields from 10V/mm to 80V/mm. It was shown that the effective electromechanical coupling factor was stabilized along with increasing Y2O3 contents.
Publisher
Trans Tech Publications, Ltd.
Subject
Mechanical Engineering,Mechanics of Materials,Condensed Matter Physics,General Materials Science
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